Greetings:
I made the pilgrimage to Aerostitch in Duluth for a Roadcrafter in the spring last year. It's held up well, but I'll probably ship it in to have a few seams tidied up. I got it large enough to be comfortable with my heated gear and polypro underneath. I also asked the Tech who took all my measurements on the rocking horse mockup they have to come see how I sit on my bike; that I would need some heat-resistant fabric stitched onto the lower half of the right leg for those brushes against the V&H exhaust system that I feared would wreak havoc on the ordinary fabric of the suit shell. My only complaint about the suit itself is that the only way to thread the heated gear to outside the suit (and connect to the pigtail on the bike) is out the left vertical pocket opening. There is a small oval affixed inside the suit beneath the front-thigh pocket, but it's a port to nowhere, and I'd wondered if they failed to complete the port. More likely, I just need some schooling on proper power line routing... The velcro tabs on the sleeve also enable me to attach a clear plastic pocket I use for a half-size EZ pass for the bridges and tunnels across most of the Eastern Seaboard. I have to be careful to remove the four rare-earth magnets BEFORE I toss the suit in the washer, and to keep them apart on the dresser pending reinstallation. They seem to be very brittle when allowed to touch one another off the suit, and I've had to buy a few spares. The mandarin collar neck rides comfortably over the other layers, and I've never had dribble-age (old word I just made up) down the inside of the collar to points beneath.
Doffing the heated gear (nearly all Gerbing 12V), and riding with the collar opened, the suit vents well enough to be comfortable >100F ambient. I have Nelson-Rigg slipover rain boots that velcro up beneath the suit, and seem to meet the mail.
I've purchased and played with Gerbing heated soles, and Gerbing heated sock liners, and keep coming back to the latter - just seem far simpler to get in and out of the boot, and work well with the wool socks I wear in the colder months. The coldest it's been so far when leaving the house is 6 deg F ambient, and even at interstate speeds, the combination of heated gear and layers seems to be able to stave off the chill.
I wear a thin liner beneath the Gerbing 12V gloves (the ones with the hard knuckles), and between the heated gloves and heated handgrips, I don't feel cursed at riding sans fairing. Dainese Blackjack gloves are my go-to warmer weather gloves, which always leave a small oval on the back of my hand as a tell-tale I've been out riding long enough to get a sort of Rider's tan...
My $.02; hope that helps;
Mark